Home / 891,673.72-1,335,739.11-491,321.50

Finding the Fourth Proportional to 891,673.72, 1,335,739.11 and 491,321.50

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Solution

The fourth proportional to 891,673.72, 1,335,739.11 and 491,321.50 is: 736,006.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,673.72 : 1,335,739.11 = 491,321.50 : x
  2. Step 2: Convert to fraction form
    891,673.72/1,335,739.11 = 491,321.50/x
  3. Step 3: Cross multiply
    891,673.72x = 1,335,739.11 × 491,321.50
  4. Step 4: Simplify right side
    891,673.72x = 656,277,337,952.06
  5. Step 5: Solve for x
    x = 656,277,337,952.06/891,673.72
  6. Step 6: Final answer
    x = 736,006.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.